Hello,
I am looking for the most effective shape to pinch a rubber tube. The most effective shape requires the least force.
Given a tube of certain diameter/thickness, I want to know whether I should use a flat, curved, knife edged or whatever type of pinch and what thickness it should...
The pipe is actually made using stereolithography (3D printing) and you are absolutely right, the roughness changes along the section and the length. For flow, it is the roughness along the length which will be the most important.
However, I still have no idea which roughness measurement...
Hello,
I'm currently doing a project were I have to design a tube through which a fluid will flow at > 10 m/s. I am validating my calculations and want to use the correct roughness values. The material is a plastic deposited using rapid prototyping.
I have measured:
Ra = ~7.5 - 8
Rz =...